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U-Joint Size - 70 AAR: #3062187
07/24/22 07:00 PM
07/24/22 07:00 PM
Joined: Jan 2003
Posts: 8,390
Highland, MI.
Sunroofcuda Offline OP
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Sunroofcuda  Offline OP
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Highland, MI.
Listings show two possible sizes. Are there possibly two sizes, or only one? *I don't even know where my driveshaft is to measure anything. Make it easy on me.


No Man With A Good Car Needs To Be Justified
Re: U-Joint Size - 70 AAR: [Re: Sunroofcuda] #3062195
07/24/22 07:34 PM
07/24/22 07:34 PM
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Posts: 29,648
Hamtramck, PA
Alaskan_TA Offline
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Hamtramck, PA
Small in front, big out back.

Re: U-Joint Size - 70 AAR: [Re: Alaskan_TA] #3062290
07/25/22 06:26 AM
07/25/22 06:26 AM
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Abilene, Texas
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fastmark Offline
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Abilene, Texas
Originally Posted by Alaskan_TA
Small in front, big out back.


This is correct. They used two different sizes on the TA/AAR 7260 in front and 7290 in the rear

Re: U-Joint Size - 70 AAR: [Re: fastmark] #3062341
07/25/22 10:22 AM
07/25/22 10:22 AM
Joined: Jan 2003
Posts: 8,390
Highland, MI.
Sunroofcuda Offline OP
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Sunroofcuda  Offline OP
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Thank you.


No Man With A Good Car Needs To Be Justified
Re: U-Joint Size - 70 AAR: [Re: Sunroofcuda] #3062365
07/25/22 11:27 AM
07/25/22 11:27 AM
Joined: Apr 2005
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Ohio
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B5TA Offline
super stock
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Ohio
perfect timing for that thread ,I needed that answer also, so Thanks Guys !!! Kevin

Re: U-Joint Size - 70 AAR: [Re: fastmark] #3062410
07/25/22 01:18 PM
07/25/22 01:18 PM
Joined: Aug 2003
Posts: 43,007
Bend,OR USA
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Cab_Burge Offline
I Win
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Bend,OR USA
Originally Posted by fastmark
Originally Posted by Alaskan_TA
Small in whineyfront, big out back.


This is correct. They used two different sizes on the TA/AAR 7260 in front and 7290 in the rear

This may not be true tsk, the AAR and T/A were built with whatever parts were on the line when they were assembled, some had consoles, some didn't, some had standard instrument clustes and some had the 150 MPH clusters and so on.
Originally the T/A and AAR were suppose to have only 8 3/4 rear ends 3:91 posi in them, scope not so.
Lots of misinformation out there about these cars
the dealers had a hard time selling those cars when new, they weren't popular at all whiney
1970 was the heyday of Hi Po muscle cars and 340 6 packs in a E body didn't qualify as one back then shruggy work scope
I've own one T/A for a lot of years and driven a lot of other people's AAR and T/A. they did run better than any 340 four barrel E body I drove including the 1971 Cuda and Challengers shruggy

Last edited by Cab_Burge; 07/25/22 03:39 PM.

Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: U-Joint Size - 70 AAR: [Re: Cab_Burge] #3062480
07/25/22 03:33 PM
07/25/22 03:33 PM
Joined: Jan 2003
Posts: 29,648
Hamtramck, PA
Alaskan_TA Offline
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Hamtramck, PA
Originally Posted by Cab_Burge
the AAR and T/A were built with whatever parts were on the line when they were assembled, some had consoles, some didn't, some had standard instrument clustes and some had the 150 MPH clusters and so on.
Originally the T/A and AAR were suppose to have only 8 3/4 rear ends 3:91 posi in them, scope not so.
Lots of misinformation out there about these cars


Facts;
Rallye cluster - extra cost option in AARs & T/As

Center console - extra cost option in AARs & T/As

3.55 ratio standard with 3.91 available as a no cost option in AARs & T/As

The small front u-joint up front with large in the rear, another fact.

Re: U-Joint Size - 70 AAR: [Re: Alaskan_TA] #3062537
07/25/22 06:37 PM
07/25/22 06:37 PM
Joined: Jan 2003
Posts: 8,390
Highland, MI.
Sunroofcuda Offline OP
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Sunroofcuda  Offline OP
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Posts: 8,390
Highland, MI.
Reason why I axed this, is because I was at a HUUUUUGE NAPA sales conference for N. America all last week in Vegas, & set up a couple booths down from us was the Spicer folks. We got into a pretty good discussion about U-Joints & I asked them if any of their stuff was still made in the USA. Turns out MOST of these U-joints ARE made in the USA, & I'm convinced they are probably the best you can buy. The solid ones - Spicer Life Series ones. I checked on Rock Auto & they have them - around $16.00/ea. For that kind of $$, why would you buy anything else?

So what are your opinions - is Spicer (Dana) the way to go? Who makes a better U-Joint? Let's hear opinions.

Last edited by Sunroofcuda; 07/25/22 06:37 PM.

No Man With A Good Car Needs To Be Justified
Re: U-Joint Size - 70 AAR: [Re: Sunroofcuda] #3062828
07/26/22 06:56 PM
07/26/22 06:56 PM
Joined: Jan 2003
Posts: 1,888
Harriman NY
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71GTX471 Offline
top fuel
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Harriman NY
Watch Ebag for the oldest NOS 7260 & 7290s you can buy, preferably pre UPC which started in 1974 on wriggles gum buy the way, the earlier the better.

Re: U-Joint Size - 70 AAR: [Re: Sunroofcuda] #3062867
07/26/22 10:18 PM
07/26/22 10:18 PM
Joined: Aug 2003
Posts: 43,007
Bend,OR USA
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Cab_Burge Offline
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Cab_Burge  Offline
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Joined: Aug 2003
Posts: 43,007
Bend,OR USA
Neapco off road U joints work well up
especially in drag racing with a good hooking (sub1.40 60 ft. times at 3450 Lbs. on a 11 inch tiire boogie)car scope up


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)






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